Form 4: Atlassian Co-Founder Sells Shares Under 10b5-1 Plan

Atlassian Co-Founder and Co-CEO Michael Cannon-Brookes reported pre-planned sales of 7,665 Class A Common Stock shares for approximately $1.28 million.

Summary

• Michael Cannon-Brookes, Co-Founder, Co-CEO, Director, and 10% Owner of Atlassian Corp (TEAM), reported the sale of 7,665 shares of Class A Common Stock.
• The sales are scheduled for August 18, 2025, and were executed under a Rule 10b5-1 trading plan adopted on February 20, 2025.
• The total value of the shares sold is approximately $1,285,900 based on weighted-average prices.
• The sales were conducted in multiple trades at varying weighted-average prices: 4,597 shares at $169.0299, 1,918 shares at $167.972, 200 shares at $165.6909, and 950 shares at $166.899.
• Following these transactions, Cannon-Brookes indirectly beneficially owns 229,950 shares of Class A Common Stock through CBC Co Pty Limited as trustee for the Cannon-Brookes Head Trust.

Sentiment

Score: 5

Explanation: Neutral. The filing reports a routine insider sale under a pre-arranged plan, which is a common occurrence and does not inherently indicate positive or negative sentiment about the company's future prospects.

Positives

• The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a scheduled transaction for diversification or liquidity rather than a reaction to new, negative information.

Negatives

• A significant insider sale, even if pre-planned, can sometimes be perceived negatively by the market, potentially leading to short-term downward pressure on the stock.

Risks

• Potential negative market perception due to insider selling, which could put downward pressure on the stock price, despite the pre-planned nature of the transaction.

Future Outlook

The filing reports pre-planned sales of Class A Common Stock by Michael Cannon-Brookes scheduled for August 18, 2025, under a Rule 10b5-1 trading plan adopted on February 20, 2025. This indicates a systematic approach to share disposition rather than a reaction to immediate market conditions. No other forward-looking statements or guidance regarding the company's future performance or strategic direction are provided.

Management Comments

• The filing includes a standard undertaking by the Reporting Person to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC staff, the issuer, or a security holder.

Industry Context

Insider sales are common in the technology sector, especially for long-tenured executives who may diversify their portfolios or manage liquidity. The use of a 10b5-1 plan is a standard practice for executives to sell shares systematically and avoid accusations of trading on material non-public information.

Comparison to Industry Standards

• The sale of shares by a co-founder and CEO, even under a 10b5-1 plan, is a routine event for executives in mature tech companies like Atlassian.
• Similar planned sales are frequently observed from executives at companies such as Microsoft (MSFT), Apple (AAPL), and Google (GOOGL) as part of their long-term compensation and diversification strategies.
• The volume of shares sold (7,665) represents a small fraction of Michael Cannon-Brookes' total beneficial ownership (229,950 shares remaining), suggesting it is not a significant divestment of his overall stake.

Stakeholder Impact

• Shareholders: May observe the insider sale, but the 10b5-1 plan mitigates concerns about opportunistic selling. The impact on share price is likely minimal unless the market overreacts.
• Employees, Customers, Suppliers, Creditors: No direct impact from this specific filing.

Next Steps

• The reported transactions are scheduled to occur on August 18, 2025. No other specific future actions or milestones are mentioned in this filing.

Key Dates

Recommendation

This filing is a routine Form 4 reporting an insider sale under a pre-arranged 10b5-1 trading plan. Such sales are common for executives for diversification and liquidity purposes and do not typically signal a change in the company's fundamental outlook or performance. The volume of shares sold is relatively small compared to the executive's overall holdings. Therefore, it does not provide new information that would warrant a change in investment recommendation based solely on this filing.

Keywords

Atlassian, TEAM, Insider Sale, Form 4, Michael Cannon-Brookes, 10b5-1 Plan, Equity Sales, Director Sales, CEO Sales